MELTING PROCESS STARTING METHOD Russian patent published in 2017 - IPC C21B13/00 

FIELD: metallurgy.

SUBSTANCE: melting device contains the melting vessel, containing the main chamber, that contains the bath of slag and molten metal with the frozen slag layer. At that the method includes the following steps: (a) inserting of the external ignition source into the main chamber of the melting vessel to form the heating zone in the main chamber, (b) start of supply the cold oxygen containing gas into the main chamber and igniting of the combustible material in the main chamber, (c) start of supply the carbonaceous material into the main chamber and temperature increasing in the main chamber, and melting of the frozen slag layer in the main chamber, and (d) start of supply the metal containing material into the main chamber and melting the metal containing material and producing the molten metal in the main chamber.

EFFECT: recognition of the necessity to create the essentially large and stable heating zone for ignition of oxygen and coal in the melting vessel main chamber by means of the independent facilities.

21 cl, 2 dwg